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A197924 as a simple table

n a(n)
1 1
2 4
3 12
4 56
5 413
6 5592
7 118914
8 4075124
9 230222994

[1,4,12,56,413,5592,118914,4075124,230222994]

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Last modified January 28 15:20 EST 2022. Contains 350657 sequences. (Running on oeis4.)